Good quality To start with,and Purchaser Supreme is our guideline to offer the top service to our customers.Presently, we’ve been seeking our best to be amongst the top exporters inside our industry to fulfill consumers extra need to have for single spring mechanical seal type 21 for water pump, While using the improvement of society and economy, our enterprise will hold a tenet of “Focus on trust, high quality the first”, moreover, we count on to make a glorious long run with each and every customer.
Good quality To start with,and Purchaser Supreme is our guideline to offer the top service to our customers.Presently, we’ve been seeking our best to be amongst the top exporters inside our industry to fulfill consumers extra need to have for Type 21 Mechanical Seal, Water Pump Seal, Water Pump Shaft Seal, Certainly, competitive price, suitable package and timely delivery will be assured as per customers’ demands. We sincerely hope to build business relationship with you on the basis of mutual benefit and profit in the very near future. Warmly welcome to contact us and become our direct cooperators.
Features
• The drive band’s “dent and groove” design eliminates overstressing of the elastomer bellows to prevent bellows slip and protect the shaft and sleeve from wear
• Non-clogging, single-coil spring provides greater dependability than multiple spring designs and will not foul due to fluid contact
• Flexible elastomer bellows automatically compensates for abnormal shaft-end play, run-out, primary ring wear and equipment tolerances
• Self-aligning unit automatically adjusts for shaft end play and run-out
• Eliminates potential shaft fretting damage between the seal and shaft
• Positive mechanical drive protects the elastomer bellows from overstressing
• Single coil spring improves tolerance to clogging
• Simple to fit and field repairable
• Can be used with practically any type of mating ring
Operation Ranges
• Temperature: -40˚F to 400°F/-40˚C to 205°C (depending on materials used)
• Pressure: up to 150 psi(g)/11 bar(g)
• Speed: up to 2500 fpm/13 m/ s (depending on configuration and shaft size)
• This versatile seal can be used on a wide range of equipment including centrifugal, rotary and turbine pumps, compressors, mixers, blenders, chillers, agitators, and other rotary shaft equipment
• Ideal for pulp and paper, pool and spa, water, food processing, wastewater treatment, and other general applications
Recommended Application
- Centrifugal Pumps
- Slurry Pumps
- Submersible Pumps
- Mixers & Agitators
- Compressors
- Autoclaves
- Pulpers
Combination Material
Rotary Face
Carbon graphite resin impregnated
Silicon carbide (RBSIC)
Hot-Pressing Carbon C
Stationary Seat
Aluminium oxide (Ceramic)
Silicon carbide (RBSIC)
Tungsten carbide
Auxiliary Seal
Nitrile-Butadiene-Rubber (NBR)
Fluorocarbon-Rubber (Viton)
Ethylene-Propylene-Diene (EPDM)
Spring
Stainless Steel (SUS304, SUS316)
Metal Parts
Stainless Steel (SUS304, SUS316)
Type W21 DIMENSION DATA SHEET (INCHES)
We can produce mechanical seals type 21 with a very competitive price